Permabond 922 Instant Adhesive-Fast-Set, Thick Gap Filling, 2-Step High-Temp Resistant

Product Name

Permabond 922 Instant Adhesive-Fast-Set, Thick Gap Filling, 2-Step High-Temp Resistant

Brief Description

Permabond 922 is an original allyl cyanoacrylate adhesive, a single-part, moderate-viscosity liquid designed for rapid curing at room temperature. It is specifically engineered to provide exceptional high-temperature resistance, up to 250°C (482°F), after a secondary heat-curing process. This adhesive offers fast fixture strength and develops high bond strength on a wide variety of materials, including metals, plastics, and rubbers. It is also 100% reactive and solvent-free.

Popular Applications & Uses

- Bonding preassembled and ceramic parts in electronic and automotive applications.- Metal to metal bonding.- Gasket applications.- Name plate attachment.- Wire tacking and electric motor tacking and bonding.- General industrial manufacturing requiring high-temperature resistance.

Industries that Commonly Use It

- Aerospace/Defense- Automotive Service/Repair- Electrical Services or Products- General Manufacturing- Government & Military- LED/Electronics- Metal Fabrication- Plastic Fabrication- Transportation/ Specialty Vehicle

Special and Unique Features

- **High-Temperature Resistance:** Withstands up to 250°C (482°F) after a secondary heat cure at 150°C (302°F) for two hours, following a four-hour room temperature clamp.- **Fast-Setting:** Achieves handling strength in seconds (e.g., <20 seconds on steel, <15 seconds on NBR Rubber).- **Gap Filling:** Designed for thick gap filling, with a maximum gap fill of 0.4mm (0.017").- **MIL-SPEC Compliant:** Meets MIL-A-46050C Type V, Class 3 (existing designs).- **Single-Part System:** Requires no mixing, offering ease of use for fast production lines.- **100% Reactive:** Contains no solvents, making it eco-friendly with no VOCs.

Key Properties

- Chemical Composition: Allyl cyanoacrylate.- Appearance: Colourless/Clear.- Viscosity @ 25°C: 1,200-2,000 mPa.s (cP) (moderate/thick viscosity).- Specific Gravity: 1.1.- Fixture/Handling Time: <20 seconds (Steel), <15 seconds (NBR Rubber).- Full Strength Cure: 24 hours.- Shear Strength (ISO4587): 19-23 N/mm² (2800-3300 psi) on steel.- Temperature Range: -55°C to 250°C (-65°F to 482°F) after post-cure.- Gap Fill: 0.4mm (0.017").

Surface Compatibility

- Steel- Aluminum- Most metal surfaces- Most types of plastic- Most types of rubber (e.g., NBR Rubber, Buna N Rubber)- Ceramics

Known backups / known substitutes

- Loctite® 4203- 3M™ Scotch-Weld™ PR600- Permatex® High-Temperature Super Glue- Permabond 919 (High-Temperature Instant Adhesive, wicking type)- Permabond 920 (High-Temperature Instant Adhesive, low viscosity)- Permabond 820 (Low viscosity modified ethyl cyanoacrylate for high-temp)- Permabond 825 (Patented high-temperature resistant cyanoacrylate, no secondary cure needed for 200°C)

Comparison Note

Permabond 922 stands out from standard cyanoacrylates due to its unique secondary curing mechanism, which enables it to achieve significantly higher temperature resistance (up to 250°C/482°F) after a post-cure heat treatment. While other Permabond high-temperature CAs like 919 and 920 also offer elevated temperature resistance, 922 is specifically noted for its moderate/thick viscosity and gap-filling capabilities, making it suitable for applications requiring a thicker bond line. For applications needing high temperature resistance without a secondary heat cure, Permabond 825 is an alternative.